Notes:a Designations used in the ground shell lists:[Ne] = 1s22s22p6[Ar] = 1s22s22p63s23p6[Kr] = 1s22s22p63s23p63d104s24p6[Cd] = 1s22s22p63s23p63d104s24p64d105s2b Uncertainty, if known, is given in parentheses after the value. It is expressed in the units of the last decimal place of the value.